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Mineração de dados Ferramenta WEKA WEKA ferramenta para data mining com muitos algoritmos implementados. Desenvolvida pela Universidade de Waikato, NZ Muito usada nos meios acadêmicos, free Site: http://www.cs.waikato.ac.nz/ml/weka/ Apresentação: http://prdownloads.sourceforge.net/weka/Weka_a_tool_for_exp loratory_data_mining.ppt Weka Explorer Após abrir arquivo: Aba de classificação Exemplo de saída Para aumentar a memória disponível C:\weka>java -jar -Xmx1000M weka.jar Salvar e utilizar modelo de classificação Salvar: A trained model can be saved like this, e.g., J48: train your model on the training data /some/where/train.arff right-click in the Results list on the item which model you want to save select Save model and save it to /other/place/j48.model Carregar load your test data /some/where/test.arff via the Supplied test set button right-click in the Results list, select Load model and choose /other/place/j48.model select Re-evaluate model on current test set